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Calum is a lecturer in physics at Edge Hill University where he studies topological solitons and enjoys talking about maths and physics to anyone who will listen. He can often be found on the side of a mountain or out on a bike, talking to himself about solitons.

Cryptic wordsearch, Issue 19
Can you solve it?
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
Chalkdust issue 11 puzzle hunt #4
Humbug sets the fourth puzzle. Can you solve it?
What’s hot and what’s not, issue 08
Fashion is fleeting, Chalkdust regulars are not.
Carnival of Mathematics 162
This month’s round up of mathematical blog posts from all over the internet
The new Chalkdust T-shirt
Have you been wondering what the pattern on it means?

More from Chalkdust

Cryptic wordsearch, Issue 19

On the cover: skyrmions

Chalkdust issue 11 puzzle hunt #4

What’s hot and what’s not, issue 08

Carnival of Mathematics 162

The new Chalkdust T-shirt